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Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions
Yang, Z; Cheng, J
2007
发表期刊MODERN PHYSICS LETTERS A
卷号22期号:2页码:#REF!
通讯作者Yang, Z (reprint author), Tsinghua Univ, Dept Engn Phys, Ctr High Energy Phys, Room 429, Beijing 100084, Peoples R China.
摘要The Hanbury-Brown and Twiss (HBT) effects predict a Bose-Einstein enhancement of the two-particle momentum correlations of identical bosons at small relative momentum. However, the parallel momentum correlations between identical fermions are less argued. The momentum correlations can be altered by many factors, among which the spin interaction effects are discussed in this paper. It is found that the spin interaction plays an important role on the momentum correlations of identical fermions. For spin triplet state, a full Fermi-Dirac suppression represents as expected. On the contrary, a fake Bose-Einstein enhancement shows up for spin singlet state. The measured momentum correlations of fermions could hence provide some hints of spin interactions between them if all other factors such as Coulomb interactions were removed. Spin interactions make it more complicated to extract physical information from momentum correlations between fermions.
文章类型Article
关键词HBT intensity interferometry momentum correlations fermion statistics heavy-ion collisions
学科领域Physics
DOI10.1142/S0217732307020920
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
WOS记录号WOS:000250970700005
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226384
专题理论物理室
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Yang, Z,Cheng, J. Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions[J]. MODERN PHYSICS LETTERS A,2007,22(2):#REF!.
APA Yang, Z,&Cheng, J.(2007).Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions.MODERN PHYSICS LETTERS A,22(2),#REF!.
MLA Yang, Z,et al."Spin interaction effects on momentum correlations for identical fermiones emitted in relativistic heavy-ion collisions".MODERN PHYSICS LETTERS A 22.2(2007):#REF!.
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